Naomi Watts spent Thursday at Montauk’s Gurney’s Inn for some beauty and sun with husband Liev Schreiber and her photographer brother, Ben, a regular on the Montauk party circuit. Ben, whose beach house was featured in UK’s Elle Décoration, threw his “Shark Sounds Attack” party over the holiday weekend at Rick’s Crabby Cowboy Cafe, which drew Stavros Niarchos and Dylan Lauren. Meanwhile, Victoria’s Secret model May Anderson and gallerist Kathy Grayson were dancing without shoes at the Wongtauk party.